World Bank President Jim Yong Kim shares his views[3] on LinkedIn on how income inequality ought to be discussed at Davos.

Jeffrey Sachs makes a case for aid[4] on Foreign Policy magazine. Bill Easterly responds with a piece called 'Aid Amnesia[5].'

The Economist Free Exchange blog cites a paper[6] by Christoph Lakner and Branko Milanovic. The paper finds that per capita income barely changed in Sub-Saharan Africa between 1993 and 2008. Moreover, in a worrying trend, 25% of the world’s poorest 5% lived in sub-Saharan Africa in 1993, but by 2008, this rose to nearly 60%.